KR101112449B1 - Automatic Soldering Device - Google Patents

Abstract

The present invention has a built-in storage unit into which a soldering material is injected, and an outer side thereof is formed of an insulating main body forming a handle, and located at the front end of the main body in a state of being in communication with the front surface of the storage unit, and heating the soldering material in the form of a melt. A heating nozzle unit for discharging the heating nozzle, a pressing unit for pressing the soldering material of the storage unit, and a switch for operating the heating nozzle unit and / or the pressing unit at a position spaced apart from the main body so that an operator can operate as a foot. It provides an automatic soldering device consisting of.

Description

Automatic Soldering Device {Automatic Soldering Device}

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram regarding the case of carrying out a soldering operation using a soldering device and a soldering wire;

2 is a schematic front view of an automatic soldering device according to one embodiment of the present invention;

3 is a schematic vertical cross-sectional view of the storage unit is open in the soldering device of FIG.

The present invention relates to an automatic soldering device, and more particularly, an insulating body which contains a reservoir into which a soldering material is injected and which has an outer surface; A heating nozzle unit which is located in the front end of the main body in communication with the front surface of the storage unit and discharges the soldering material in the form of a melt by heating, a pressurizing unit which presses the soldering material in the storage unit, and an operator can operate as a foot. And a switch for operation of the heating nozzle portion and / or the pressurization portion at a position spaced apart from the body.

Electrical connection of electrical elements is generally accomplished by fastening, welding, soldering (aka, soldering), etc., by the connecting member. Among them, the soldering method can be easily performed on a variety of objects, and is widely performed due to the advantage of low cost.

In the conventional soldering operation, the soldering iron is placed on a work object such as a substrate to heat the tip of the soldering iron to melt the solder wire to perform welding on the work object.

Referring to FIG. 1, which schematically shows a conventional soldering operation, one hand operates the soldering device 10, and the other hand moves the solder wire 12 to the corresponding working position of the substrate 14 as the working object. Since it has to be fixed to (16), the working radius of the worker is narrowed, and it is not easy to perform the soldering operation on the substrate 14 precisely at a difficult and accurate position.

In addition, a separate jig (JIG) was always needed to fix the work object during soldering, and since both hands were used, the work object could not be corrected even when it was moved out of position, and the work object was heated by the soldering device. And it took a long time to melt the soldering material.

Thus, in order to partially solve these problems, some prior art has proposed a structure for a soldering device (a soldering iron) capable of performing soldering without using solder wires.

For example, Japanese Patent Application Laid-Open No. 2000-197965 discloses an air pressure in a charging chamber in which the cream welding material filled in the charging chamber of the welding iron is melted by heating means for heating the iron tip. The soldering device of the structure which extrudes a molten welding material from a nozzle is disclosed.

However, in the above technique, the welding operation is started as a rain when the compression spring interlocking opening / closing valve located between the heater part and the charging chamber is opened. For this operation, the operator must pressurize the tip where the nozzle is formed. There is a problem that damage to the subject is inevitable. In addition, although the discharge of the molten weld material through the nozzle depends on the heat-expanded air in the charging chamber, the reliable operation is difficult because the discharge of the soldering welding material having a high surface tension must depend entirely on the air pressure in the limited charging chamber space. Has Moreover, since the onset of soldering is started as soon as the lead wire is directly connected to the power line, continuous work is difficult to achieve.

As another structure, Japanese Patent Application Laid-Open No. 3001529 adjusts the operation of a welding material tank part in which a solid welding material is loaded and melted, a sending means for discharging the molten welding material by a predetermined amount to the tip of the iron machine, and a welding material sending means. A soldering device comprising: a discharge amount adjusting means for adjusting the discharge amount, a heating means for heating the welding material tank portion and a soldering iron tip portion, and a welding material supply means for applying pressure to discharge the molten welding material in the welding material tank portion outward; It is starting.

The above technique requires that the piston of the pistol structure be pulled with the fingers to advance the piston to achieve a molten weld jet, thus ensuring more reliable operation than the prior art, but forcing the lever to actuate the finger during precise soldering operations. Because it must be done, there is a problem that the work is less sophisticated.

Accordingly, an object of the present invention is to solve the problems of the prior art and the technical problem that has been requested from the past.

Specifically, an object of the present invention is to inject a soldering material into the main body of the soldering device, and then heats the surroundings of the soldering tip to a high temperature to melt the soldering material, and the soldering material is directed to the soldering tip by a predetermined amount by pressurized air injected into the rear portion. It is to provide an automatic soldering device which can be pushed out to perform soldering welding, and installed in a position where the operation switch can be operated by foot to perform a more precise soldering operation.

An automatic soldering device according to the present invention for achieving this object,

An insulated body having a storage portion into which a soldering material is injected and having an outer surface;

A heating nozzle unit positioned at a front end of the main body in communication with the front surface of the storage unit and discharging a soldering material in the form of a melt by heating;

A pressing unit for pressing the soldering material of the storage unit; And

A switch (actuating switch) for actuating the heating nozzle portion and / or the pressurizing portion at a position spaced apart from the main body so that an operator can operate as a foot;

It is composed of a structure including a.

Therefore, the soldering device according to the present invention can be operated using only one hand, can reliably discharge the molten soldering material of the reservoir through the pressurizing portion through the heating nozzle portion, and the operation switch is configured to operate as a foot More precise work can be achieved.

The "soldering material" is not particularly limited as long as it is a solid or liquid material capable of soldering for electrical connection. For example, powder, particles of a predetermined size, a short length of wire, and the like may be used. Lead-free soldering materials that do not contain may be used.

In one preferred embodiment, the outer side of the main body may be formed of a structure in which an opening communicating with a storage portion into which the soldering material is injected, and a cover for sealing the opening.

As another example, the main body may be formed in a hinge structure that can be separated in the width direction to expose the storage. Therefore, since the main body is separated in the width direction and the soldering material is injected and then fastened again while the storage part is exposed, the soldering work process can be further simplified.

Preferably, the hinged structure for exposing the storage portion further includes a fastening member for preventing separation, so that the storage portion is opened during the soldering operation to prevent leakage of the molten soldering material to the outside, and the pressing portion Pressure loss during operation can be suppressed.

The heating nozzle part may be a portion in which the soldering material embedded in the storage part is melted and discharged for soldering, for example, made of a conductive member and having a heating coil embedded therein. The end portion of the heating nozzle portion has a substantially conical structure in order to discharge the melt in a predetermined amount to the work object and to secure the operator's view.

In one preferred embodiment, the heating nozzle portion may be composed of a heating portion (second heating portion) having a smaller outer diameter than the main body continuously in the body and a first heating portion having a smaller outer diameter in succession with the second heating portion. . In addition, the heating temperature of the second heating unit may be lower than that of the first heating unit of the device.

Therefore, since the soldering material supplied from the reservoir by the pressing unit is first melted in the second heating unit and then melted at a higher temperature in the first heating unit, a melt having a relatively low viscosity may be discharged through the nozzle, Soldering becomes easier. Furthermore, as a kind of preheating part additionally includes a second heating part, the gaseous components (eg, air) collected while the soldering material is melted are removed from the second heating part before being discharged through the nozzle for soldering operation. , Can improve the soldering quality.

For example, the second heating part is heated to 200 to 250 ° C., which is an appropriate temperature for melting the soldering material, and the first heating part is heated to 350 to 450 ° C., which is a working temperature for directly soldering the workpiece. It can be configured to.

The pressurizing part for moving the soldering material of the storage part toward the heating nozzle part may be configured in various configurations. Preferably, the pressurizing part may be configured by an air tube communicating with a rear surface of the storage part and a pump providing pressurized air to the air tube. As described above with respect to the prior art, a configuration in which the reservoir is made into a cylinder structure and the pressurized part is also possible may be possible, but some soldering material melted at the heating nozzle part flows back into the reservoir and partially solidifies in the reservoir. In this case, a problem may occur that prevents the piston from moving forward. On the other hand, when advancing the soldering material by the pressurized air as in the above configuration can solve the above problems.

Generally, soldering is performed discontinuously in a series of soldering operations. For example, when a predetermined element is placed on a specific portion of a circuit board (work object) and soldered, and then another circuit or element is electrically connected, the soldering operation is performed discontinuously. On the other hand, since the melt flows continuously through the nozzle heated at one end, it is difficult for the operator to perform the work at a desired time interval. Therefore, it is desirable to be configured so that such an operation can be performed at a desired time by a predetermined operation switch.

However, when the operation switch is located in the device body or adjacent to it, the operator must operate the operation switch with at least one finger, so precise work is inevitably disturbed. On the other hand, in the soldering device of the present invention, since the operation switch is configured to be operated by the foot, such precision work may be possible.

The operation switch is configured to control the operation of the pressurization unit and / or the operation of the heating nozzle unit, and the operation of the pressurization unit may preferably include both a process of injecting and inhaling pressurized air into the storage unit. As described above, the soldering material melted in the heating nozzle portion can flow out differently from the intention of the operator, it is necessary to prevent the natural discharge of the melt in order for the operator to stop the operation momentarily. Therefore, in this case, it is necessary to suck the melt into the heating nozzle part, because it is more preferable to control it by the operation switch.

Hereinafter, the present invention will be described in more detail with reference to the drawings, but the scope of the present invention is not limited thereto.

FIG. 2 schematically shows a front view of an automatic soldering device according to an embodiment of the present invention, and FIG. 3 schematically shows a vertical sectional view of an open state of its storage part.

Referring to these drawings, the automatic soldering device 100 includes an insulating main body 300 including a first heating part 210, a second heating part 220, and a storage part 310 as the heating nozzle part 200. ), An air pressurizing unit 400 including an air pipe 410 and a pump 420, an operation switch 500, and the like.

The heating nozzle unit 200 is positioned at the front end of the main body 300 while being in communication with the front surface of the storage unit 310, and the heating coil 230 is embedded therein. Specifically, the heating nozzle unit 200 has a second heating unit 220 having an outer diameter smaller than that of the main body 300 in succession to the main body 300, and an outer diameter smaller than that of the second heating unit 220 in succession. It consists of the 1st heating part 210, The heating temperature of the 2nd heating part 220 is set lower than the 1st heating part 210 at the time of a soldering operation. In addition, the first heating unit 210 has a conical structure at the end thereof in order to discharge the melt 612 to a work object in a predetermined amount and to secure the operator's view.

The main body 300 serving as a handle of the device 100 is connected to the hinge 320 to be separated in the width direction thereof to expose the storage 310 therein, the fastener 330 on the opposite side Is formed. Therefore, after injecting the powdered or particulate soldering material 600 in a state in which the fastener 330 is separated and the storage 310 is opened, the sealing process may be easily performed and the sealing state may be stably maintained. .

The soldering material 600 embedded in the storage unit 410 moves in the direction of the heating nozzle unit 200 by the pressurized air injected through the air tube 410 by the action of the pump 420.

The soldering material 600 moved to the heating nozzle part 200 is first melted at about 200 to 250 ° C. at the second heating part 220, and then melted at about 350 to 450 ° C. at the first heating part 210 to be relatively melted. The melt having a low viscosity is discharged through the nozzle 212. In particular, the air collected in the melt 610 of the second heating unit 220 is discharged again toward the storage unit 310 before moving to the first heating unit 210, thereby solving the problem due to air collection. . In addition, since the melt 612 of the first heating unit 210 has a low viscosity, the soldering operation may be more easily performed.

The operation switch 500 for controlling the operation of the heating nozzle unit 200 and the pressing unit 400 is separated from the main body 300 so that the operator can operate as a foot. Therefore, the operator performs the precise soldering operation by operating the operation switch 500 by the foot while holding the main body 300 with one hand and fixing the work object (not shown) to the correct position or the predetermined position with the other hand. can do.

Although the above has been described with reference to the drawings of the automatic soldering device according to an embodiment of the present invention, those skilled in the art to which the present invention pertains to various applications and modifications within the scope of the present invention based on the above contents. It will be possible.

As described above, the automatic soldering device according to the present invention can perform the soldering operation that had to be performed with both hands with one hand, and can reliably discharge the soldering melt by the pressurizing portion, and the operator can set the foot as a foot. The operation of the can be controlled, which allows very precise soldering operations.

Claims (10)

An insulated body having a storage portion into which a soldering material is injected and having an outer surface; A heating nozzle unit positioned at a front end of the main body in communication with the front surface of the storage unit and discharging a soldering material in the form of a melt by heating; A pressing unit for pressing the soldering material of the storage unit; And A switch (actuating switch) for actuating the heating nozzle portion and / or the pressurizing portion at a position spaced apart from the main body so that an operator can operate as a foot; It contains, The heating nozzle part is made of a conductive member, and has a heating coil embedded therein, the second heating part having a smaller outer diameter continuous to the main body, and the first heating part having a smaller outer diameter continuous to the second heating part. And the heating temperature of the second heating portion is lower than that of the first heating portion. 2. The automatic soldering device according to claim 1, wherein an opening communicating with a storage unit and a lid for sealing the opening are formed at one side of the outer surface of the main body. The automatic soldering device of claim 1, wherein the main body has a hinged structure to be separated in the width direction so that the storage part is exposed. 4. The automatic soldering device of claim 3, wherein the hinged structure includes a fastening member to prevent separation. delete delete delete  The automatic soldering device of claim 1, wherein the pressurizing unit comprises an air tube communicating with a rear surface of the storage unit, and a pump for supplying pressurized air to the air tube. 2. The automatic soldering device of claim 1, wherein the actuating switch is operated to inject pressurized air into the reservoir and to inhale therefrom.  2. The automated soldering device of claim 1, wherein the soldering material is a powder, particles of a predetermined size, or a wire of short length.

Images